如何在富文本框中更改部分文本的突出显示颜色?

本文介绍了如何在富文本框中更改部分文本的突出显示颜色?的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我是WPF的RichTextBox的新手.我想知道如何在具有特定颜色的行上突出显示文本.

I am new to WPF's RichTextBox. I would like to know how to highlight text on a line with a specific colour.

假设我有一个带有黄色背景的富文本框，并为其指定了流程文档.

Let's say I have a rich text box with a yellow background and assign to it a flow document.

richTextBox.Background = Brushes.LightYellow; var mcFlowDoc = new FlowDocument(); var para = new Paragraph(); para.Inlines.Add(new Run("This is the first line.\n")); para.Inlines.Add(new Run("This is the second line.\n")); para.Inlines.Add(new Run("This is the third line.")); mcFlowDoc.Blocks.Add(para); richTextBox.Document = mcFlowDoc;

下一步要怎么做才能将第三行的突出显示颜色更改为红色?我不是在谈论选择突出显示颜色，而是普通的高亮文字(例如在写字板中)

What would I have to do next to change the third line's highlight colour to red? I am not talking about selection highlight colour, but normal text highligting (like in WordPad)

如果有解决方案，我希望使用C#代码，但我希望远离XAML编辑.

If there is a solution, I would like it in C# code, I want to stay away from XAML editing.

推荐答案

Run run = new Run("Red is the third line.\n"); // run.Foreground = Brushes.Red; run.Background = Brushes.Red; para.Inlines.Add(run);